This post comes from Lenny Zeltser (someone I personally follow on Twitter), “Having used Twitter for a couple of years, I can say that its role as social networking medium for members of the information security community has been steadily growing. The value Twitter offers infosec people in three-fold: it helps keep up with interesting security-related content; it offers a forum for interacting with fellow infosec professionals; and it assists in researching current security events and trends.”